JP7487667B2 - 光学構造体およびアーティファクト低減方法 - Google Patents
光学構造体およびアーティファクト低減方法 Download PDFInfo
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- JP7487667B2 JP7487667B2 JP2020571212A JP2020571212A JP7487667B2 JP 7487667 B2 JP7487667 B2 JP 7487667B2 JP 2020571212 A JP2020571212 A JP 2020571212A JP 2020571212 A JP2020571212 A JP 2020571212A JP 7487667 B2 JP7487667 B2 JP 7487667B2
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Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/30—Identification or security features, e.g. for preventing forgery
- B42D25/324—Reliefs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/30—Identification or security features, e.g. for preventing forgery
- B42D25/328—Diffraction gratings; Holograms
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/18—Diffraction gratings
- G02B5/1842—Gratings for image generation
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/18—Diffraction gratings
- G02B5/1861—Reflection gratings characterised by their structure, e.g. step profile, contours of substrate or grooves, pitch variations, materials
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Elements Other Than Lenses (AREA)
- Prostheses (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019020496 | 2019-02-07 | ||
JP2019020496 | 2019-02-07 | ||
PCT/JP2020/004105 WO2020162449A1 (ja) | 2019-02-07 | 2020-02-04 | 光学構造体およびアーティファクト低減方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2020162449A1 JPWO2020162449A1 (ja) | 2021-12-09 |
JP7487667B2 true JP7487667B2 (ja) | 2024-05-21 |
Family
ID=71948337
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2020571212A Active JP7487667B2 (ja) | 2019-02-07 | 2020-02-04 | 光学構造体およびアーティファクト低減方法 |
Country Status (4)
Country | Link |
---|---|
EP (2) | EP3923043B1 (de) |
JP (1) | JP7487667B2 (de) |
AU (1) | AU2020218988A1 (de) |
WO (1) | WO2020162449A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3923043B1 (de) | 2019-02-07 | 2023-12-27 | Toppan Printing Co., Ltd. | Optische struktur und verfahren zur artefaktreduktion |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120319395A1 (en) | 2009-12-04 | 2012-12-20 | Giesecke & Devrient Gmbh | Security element, value document comprising such a security element and method for producing such a security element |
US20130093172A1 (en) | 2009-12-04 | 2013-04-18 | Giesecke & Devrient Gmbh | Security element, value document comprising such a security element, and method for producing such a security element |
US8866008B2 (en) | 2005-06-16 | 2014-10-21 | Saint-Gobain Glass France | Transparent glass pane provided with a surface structure |
US20170336644A1 (en) | 2009-02-20 | 2017-11-23 | Rolling Optics Ab | Devices for integral images |
WO2018097314A1 (ja) | 2016-11-28 | 2018-05-31 | 凸版印刷株式会社 | 表示体、およびその真贋判定方法、ならびに印刷物 |
WO2019022210A1 (ja) | 2017-07-26 | 2019-01-31 | 凸版印刷株式会社 | 光学構造体および認証体 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITTO20030734A1 (it) * | 2003-09-24 | 2005-03-25 | Fiat Ricerche | Concentratore di luce multifocale per un dispositivo per la conversione di radiazione, ed in particolare per la conversione della radiazione solare in energia elettrica, termica o chimica. |
EP3923043B1 (de) | 2019-02-07 | 2023-12-27 | Toppan Printing Co., Ltd. | Optische struktur und verfahren zur artefaktreduktion |
-
2020
- 2020-02-04 EP EP20752379.6A patent/EP3923043B1/de active Active
- 2020-02-04 AU AU2020218988A patent/AU2020218988A1/en active Pending
- 2020-02-04 EP EP23218607.2A patent/EP4321906A3/de active Pending
- 2020-02-04 WO PCT/JP2020/004105 patent/WO2020162449A1/ja unknown
- 2020-02-04 JP JP2020571212A patent/JP7487667B2/ja active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8866008B2 (en) | 2005-06-16 | 2014-10-21 | Saint-Gobain Glass France | Transparent glass pane provided with a surface structure |
US20170336644A1 (en) | 2009-02-20 | 2017-11-23 | Rolling Optics Ab | Devices for integral images |
US20120319395A1 (en) | 2009-12-04 | 2012-12-20 | Giesecke & Devrient Gmbh | Security element, value document comprising such a security element and method for producing such a security element |
US20130093172A1 (en) | 2009-12-04 | 2013-04-18 | Giesecke & Devrient Gmbh | Security element, value document comprising such a security element, and method for producing such a security element |
WO2018097314A1 (ja) | 2016-11-28 | 2018-05-31 | 凸版印刷株式会社 | 表示体、およびその真贋判定方法、ならびに印刷物 |
WO2019022210A1 (ja) | 2017-07-26 | 2019-01-31 | 凸版印刷株式会社 | 光学構造体および認証体 |
Also Published As
Publication number | Publication date |
---|---|
EP3923043A4 (de) | 2022-11-09 |
EP3923043A1 (de) | 2021-12-15 |
AU2020218988A1 (en) | 2021-08-12 |
EP4321906A2 (de) | 2024-02-14 |
EP4321906A3 (de) | 2024-03-06 |
EP3923043B1 (de) | 2023-12-27 |
WO2020162449A1 (ja) | 2020-08-13 |
JPWO2020162449A1 (ja) | 2021-12-09 |
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